I am looking at different remote and i am not sure which to get for the tanks. It is stated that i need a 4 channel remote which i understand why, turret, gun barrel, left and right track function. now if i want to add other functions ie machine gun moverment or maybe animated tank commander (saw on a movie of a tiger that had one and was thinking about doing that IF there is room in the tank for the equipment) do i need to get say a 6 channel remote to do these functions due to needing more servos? again any and all information will be greatly appriciated.

Erik